Which of the following is not true regarding the amphibian life cycle?
A. The adult life stage is carnivorous.
B. The larval life stage is herbivorous.
C. The larval life stage has lungs for
breathing air.
D. Reproduction must occur on land.
D
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Cells that have undergone homologous recombination for gene replacement would have which of the following gene combinations?
A. Only the cloned gene B. Only the original gene C. Both the cloned and original gene D. Neither the cloned or original gene
What is epigenetic gene regulation?
a. regulation after translation b. regulation when RNA is processed and exported to the cytoplasm after it is transcribed c. regulation when the DNA is uncoiled and loosened at the nucleosomes to bind transcription factors d. regulation when RNA is translated to protein
Biological membranes are normally permeable to:
a. large, hydrophilic molecules. b. small, hydrophilic molecules. c. large, hydrophobic molecules. d. small, hydrophobic molecules. e. ABC transporters
The common yarrow grows to different heights in response to different climates and different elevations. This is a
classic example of: a. mutation. b. genetic drift. c. natural selection. d. neutral variation. e. geographic variation.